I just checked your item and sincerely, in this shape it will not be approved on ThemeForest. There is a huge quality difference between approved items and this one.
There are issue everywhere. I will point some of them:
- Spacing problems everywhere;
- Typography hierarchy is really bad;
- Many elements seems to be default(bootstrap), not even changed a bit, which is really bad;
- Logo needs improvements;
- Footer elements are just thrown there
- Footer - too many Simple Works photos
- Nav styling is really bad(hover);
Don’t know, I can’t see any element ok. My suggestion is to start learning some basic Typography, hierarchy and color combination courses. You can do this on https://tutsplus.com/ or lynda.com or any other free source. Then check some approved items and compare your item with them and see where you are wrong.